Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 30-04-2020 and time 12:20:46 (Italy) in region 3 km SW Vastogirardi (IS)

A magnitude ML 1.6 earthquake occured in region: 3 km SW Vastogirardi (IS), on

  • 30-04-2020 10:20:46 (UTC)
  • 30-04-2020 12:20:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7470, 14.2470 at 15 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Vastogirardi IS 3 704 704
Carovilli IS 6 1359 2063
Roccasicura IS 6 550 2613
San Pietro Avellana IS 7 503 3116
Forlì del Sannio IS 8 675 3791
Rionero Sannitico IS 10 1118 4909
Capracotta IS 10 903 5812
Pescolanciano IS 11 855 6667
Miranda IS 11 1047 7714
Acquaviva d'Isernia IS 12 425 8139
Pietrabbondante IS 12 759 8898
Agnone IS 12 5139 14037
Castel del Giudice IS 12 346 14383
Castel di Sangro AQ 12 6538 20921
Ateleta AQ 13 1181 22102
Castelverrino IS 13 115 22217
Chiauci IS 14 233 22450
Sessano del Molise IS 14 727 23177
Poggio Sannita IS 14 702 23879
Pescopennataro IS 15 285 24164
Sant'Angelo del Pesco IS 15 364 24528
Montenero Val Cocchiara IS 15 538 25066
Pesche IS 15 1661 26727
Cerro al Volturno IS 16 1281 28008
Civitanova del Sannio IS 16 945 28953
Belmonte del Sannio IS 17 768 29721
Scontrone AQ 17 574 30295
Alfedena AQ 18 864 31159
Isernia IS 18 21842 53001
Fornelli IS 18 1909 54910
Roccaraso AQ 18 1627 56537
Gamberale CH 18 320 56857
Bagnoli del Trigno IS 18 735 57592
Castel San Vincenzo IS 18 516 58108
Carpinone IS 18 1157 59265
Rocchetta a Volturno IS 19 1113 60378
Rosello CH 19 237 60615
Pettoranello del Molise IS 19 460 61075
Pizzoferrato CH 20 1130 62205
Pizzone IS 20 329 62534
Borrello CH 20 354 62888

Municipalities with at least 50000 inhabitants

An earthquake occurred to
68 Km S of Chieti (51815 inhabitants)
75 Km N of Caserta (76326 inhabitants)
80 Km S of Pescara (121014 inhabitants)
82 Km NW of Benevento (60091 inhabitants)
86 Km S of Montesilvano (53738 inhabitants)
86 Km N of Aversa (53047 inhabitants)
90 Km N of Acerra (59573 inhabitants)
91 Km N of Giugliano in Campania (122974 inhabitants)
92 Km N of Afragola (65057 inhabitants)
94 Km N of Casoria (77642 inhabitants)
94 Km N of Marano di Napoli (59874 inhabitants)
94 Km W of San Severo (53905 inhabitants)
97 Km SE of L'Aquila (69753 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.6 2020-04-30
10:20:46		 41.7473 14.2467 15 2020-07-18
21:08:40		 Bollettino Sismico Italiano INGV 80199701
Reviewed
Rev100 		ML 1.7 2020-04-30
10:20:46		 41.7482 14.2568 16 2020-04-30
10:31:43		 Sala Sismica INGV-Roma 78694741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-30 10:20:46 ± 0.12
Latitude 41.7473 ± 0.0063
Longitude 14.2467 ± 0.0084
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80199701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 750
Semi-minor axis of confidence ellipse (meter) 319
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 59
Circular confidence region, given by single value of horizontal uncertainty (meter) 750.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.40020
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 80199701
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-15 08:59:20

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 78694741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-30 10:31:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.BNI.HHZ. 2020-04-30T10:22:45.93 3.0 negative manual Pg 26.129999 0
IV.LPDG.HHZ. 2020-04-30T10:22:37.65 3.0 undecidable manual Pg 19.610001 0
IV.NDIM.HHZ. 2020-04-30T10:22:37.47 3.0 undecidable manual Sn 4.53 0
IV.SARZ.HHZ. 2020-04-30T10:22:20.41 3.0 positive manual Pg 20.450001 0
IV.AGST.EHZ. 2020-04-30T10:22:08.95 3.0 positive manual Pg 15.76 0
IV.MNTV.HNZ. 2020-04-30T10:22:05.11 3.0 undecidable manual Pg 15.6 0
IV.EUCT.HNZ. 2020-04-30T10:22:02.25 3.0 positive manual Pn 1.09 0
IV.CTI.HHZ. 2020-04-30T10:22:01.25 3.0 undecidable manual Pn 5.49 0
IV.PARC.HHZ. 2020-04-30T10:21:54.61 3.0 undecidable manual Sn -0.01 0
GU.GORR.HHZ. 2020-04-30T10:21:53.95 3.0 undecidable manual Pn -0.89 0
IV.CAGR.HHZ. 2020-04-30T10:21:48.92 3.0 undecidable manual Pn 1.5 0
IV.CRAC.EHZ. 2020-04-30T10:21:47.01 3.0 undecidable manual Sn 0.39 0
IV.ZCCA.HHZ. 2020-04-30T10:21:39.17 3.0 undecidable manual Pn -0.85 0
CR.STON.BHZ. 2020-04-30T10:21:33.76 3.0 positive manual Pn 4.64 0
IX.STN3.HHZ.02 2020-04-30T10:21:32.96 3.0 undecidable manual Sn -0.74 0
IV.RIBO.EHZ.01 2020-04-30T10:21:26.19 3.0 positive manual Pn -1.8 0
IV.MRB1.HHZ. 2020-04-30T10:21:13.47 3.0 undecidable manual S -0.76 0
IV.MNTT.EHZ. 2020-04-30T10:21:10.04 3.0 positive manual P -0.53 0
IV.IFOR.HHZ. 2020-04-30T10:21:09.35 3.0 undecidable manual P 3.62 0
IV.MELA.HHZ. 2020-04-30T10:21:07.99 3.0 undecidable manual S -0.77 0
IV.POFI.HHZ. 2020-04-30T10:21:01.35 0.3 undecidable manual S 266 44.4222 98 0.37 67
IV.BSSO.HNZ. 2020-04-30T10:20:59.67 1.0 undecidable manual S 128 36.4413 100 0.79 20
IV.VAGA.HNZ. 2020-04-30T10:20:58.93 1.0 undecidable manual S 182 36.8298 100 -0.07 24
IV.LPEL.HHZ. 2020-04-30T10:20:58.10 1.0 undecidable manual S 351 33.6441 101 -0.05 24
IV.CERA.HHZ. 2020-04-30T10:20:56.49 0.6 undecidable manual S 229 25.1526 108 0.52 44
IV.TRIV.HHZ. 2020-04-30T10:20:56.59 1.0 undecidable manual S 85 25.2525 108 0.61 22
IV.POFI.HHZ. 2020-04-30T10:20:54.68 0.1 undecidable manual P 266 44.4222 98 -0.23 92
IV.LPEL.HHZ. 2020-04-30T10:20:53.13 0.1 undecidable manual P 351 33.6441 101 -0.14 95
IV.VAGA.HNZ. 2020-04-30T10:20:53.60 0.3 undecidable manual P 182 36.8298 100 -0.16 71
IV.BSSO.HNZ. 2020-04-30T10:20:53.85 0.3 undecidable manual P 128 36.4413 100 0.16 71
IV.RNI2.HHZ. 2020-04-30T10:20:52.81 0.6 undecidable manual S 238 9.1797 142 0.41 47
IV.MIDA.HHZ. 2020-04-30T10:20:52.53 0.3 undecidable manual S 177 11.6772 134 -0.31 72
IV.TRIV.HHZ. 2020-04-30T10:20:52.04 0.1 undecidable manual P 85 25.2525 108 0.02 100
IV.CERA.HHZ. 2020-04-30T10:20:51.75 0.1 undecidable manual P 229 25.1526 108 -0.26 95
IV.RNI2.HHZ. 2020-04-30T10:20:50.09 0.1 undecidable manual P 238 9.1797 142 0.14 100
IV.MIDA.HHZ. 2020-04-30T10:20:49.98 0.1 undecidable manual P 177 11.6772 134 -0.23 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MIDA.HNE. ML:1.5 0.00029527765 0.224 AML other m 2020-04-30T10:20:52.58
IV.MIDA.HHN. ML:1.6 0.00030868780000000004 0.2432 AML other m 2020-04-30T10:20:52.57
IV.RNI2.HHE. ML:1.7 0.0005372555 0.16 AML other m 2020-04-30T10:20:53.02
IV.RNI2.HNE. ML:1.7 0.0005036973499999999 0.1408 AML other m 2020-04-30T10:20:53.03
IV.RNI2.HNN. ML:1.8 0.0006011921 0.1792 AML other m 2020-04-30T10:20:53.32
IV.RNI2.HHN. ML:1.8 0.0006421732499999999 0.1792 AML other m 2020-04-30T10:20:53.32
IV.MIDA.HHE. ML:1.3 0.0001954892 0.16 AML other m 2020-04-30T10:20:53.48
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download